Rau kev ua haujlwm nyab xeeb, suav nrog kev kho thiab hloov cov khoom siv hluav taws xob, kho cov ntu ntawm cov hluav taws xob hluav taws xob nyob rau hauv kev thauj khoom, nws yog qhov yuav tsum tau tua hluav taws xob. Nws tsis yooj yim los ua qhov no nyob rau hauv kev thauj khoom vim qhov tshwm sim ntawm hluav taws xob arc thaum cov neeg sib cuag ntawm lub cuab yeej qhib. Txhawm rau ua kom cov txheej txheem muaj kev nyab xeeb, cov cuab yeej tshwj xeeb yog siv - hloov pauv.
Dab tsi yog cov cuab yeej zoo li no?
Ib qho kev hloov pauv yog lub cuab yeej siv los txiav tawm cov pab pawg sib cuag hauv ib ntu ntawm cov hluav taws xob hluav taws xob uas siv cov tshuab ua haujlwm, nruab nrog arc chutes. Cov cuab yeej yog high-voltage thiab yog nyob rau hauv hluav taws xob installation ua hauj lwm nyob rau hauv voltage ntawm 6 thiab 10 kilovolts. Lub tshuab hluav taws xob hloov pauv tau dav siv rau kev cuam tshuam thiab rov pib lub zog hluav taws xob hauv cov chaw faib khoom hauv nroog thiab nyob deb nroog, nrog rau hauv kev cob qhia kev lag luam.
Cov khoom siv hluav taws xob qis
Tsis muaj load lojCircuit Court breaker yog siv nrog phau ntawv tsav yam tsis muaj arc extinguishing mechanism. Nws yog siv nyob rau hauv circuits uas tsis tshua muaj tam sim no - feem ntau nyob rau hauv switchboards ntawm domestic los yog kev tswj qhov chaw. Ib qho piv txwv ntawm cov khoom siv no yog VN-32 load hloov. Nws yog tsim los ua hauj lwm nyob rau hauv circuits 230-400 V thiab nrog ib tug load tam sim no los ntawm 22 mus rau 100 A. Nws muaj ib tug txawv polarity - los ntawm 1 mus rau 4 hu.
Load Breaker Device
Yog tias peb xav txog qhov kev npaj dav dav ntawm cov txheej txheem no, tsis hais hom thiab qhov twg, tom qab ntawd qhov kev hloov pauv hloov pauv hloov pauv hloov pauv yog lub hauv paus welded uas peb qhov kev sib txuas ruaj khov ntawm lub tshuab txiav tawm nrog rau kev sib txuas cov theem conductors ntawm cov cable yog rigidly tsau ntawm high-voltage insulators. Cov neeg no tau muab tso rau hauv arc chutes.
Ntawm lwm qhov peb cov insulators sib txuas nrog cov pab pawg ruaj khov, ib pab pawg sib txuas tau txuas nrog, uas yog cov neeg sib cuag lawv tus kheej, ua los ntawm ob daim hlau, thiab ib pawg arc-suppressing riam.
Ib qho piv txwv ntawm cov cuab yeej zoo li no yog qhov hloov pauv hloov VNA-10, ua haujlwm hauv circuits txog 10 kV nrog cov ntsuas tam sim no mus txog 630 A. Hom no yog tsim los ntawm kev hloov pauv txawv: nrog cov riam hauv av (ib lossis peb), nrog rau cov fuses (lossis tsis muaj).
Arc chambers
Lawv yog ua los ntawm cov yas thiab muaj cov ntsiab lus ruaj khov txuas nrog rau lub ntsiab ruaj khov. Daim phiaj ntawm cov khoom siv roj tau nruab rau ntawm ob sab ntawm lub chamber.
Tau tua cov arc generatedThaum lub voj voog tawg, cov kev tua hluav taws hauv qab no yog siv rau hauv cov khoom sib luag:
– autogas;
– autopneumatic;
– electromagnetic;
– SF6;
– nrog lub tshuab nqus tsev.
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm kev hloov pauv hloov
Thaum lub cuab yeej qhib, cov arcing daim hlau-hniav nkag mus rau hauv lub arc extinguishing chambers thiab txuas nrog cov neeg sib raug zoo. Tom ntej no los mus rau hauv kev sib txuas yog lub ntsiab txav thiab ruaj hu. Thaum lub sij hawm ntawm disconnection nyob rau hauv lub auto-gas hloov, cov pab pawg neeg tseem ceeb yog disconnected ua ntej ntawm tag nrho cov, thiab tsuas yog tom qab lawv lub arc-suppressing hniav thiab cov taag tiv tauj nyob rau hauv lub arc-suppressing chamber yog disconnected.
Raws li cov riam tawm ntawm chav tua hluav taws, lub arc tsim nyob rau lub sijhawm ntawd ua rau cov khoom tsim cov roj. Cov pa tawm los ntawm cov khoom siv no ua rau muaj kev nce siab hauv lub chamber thiab ntws ntawm cov riam txav tau thiab cov liners, uas tshuab lub arc longitudinally, ua rau nws tsis kam. Vim li ntawd, nws tawm mus.
Tam sim no yuav ua li cas txuas lub thauj khoom tawg hloov. Cov cuab yeej yog ntsia nruj nreem vertically, thiab nrog ib tug yuav tsum tau xyuas ntawm cov kav dej kab thiab theem. Yog tias tsim nyog, siv cov gasket tsim nyog. Thaum lub sij hawm nruj ntawm cov bolts, kev ywj pheej ntawm kev txav ntawm arc-extinguishing hniav nyob rau hauv lub chamber yog tas li saib xyuas. Tom qab ntawd tus tsav yog ntsia (pem hauv ntej lossis nram qab - nyob ntawm tus tsim). Tus pas nrig nrog rab rawg yog txuas nrog lub zog ntawm lub voj voog hluav taws xob los ntawm kev ua haujlwm qib ntawm tus tsav. Hniav parallelismyog tswj los ntawm cov insulators uas axial contacts yog tsau. Tom qab 25 hloov mus rau thiab tawm, yog tias tsis muaj qhov sib txawv ntawm kev nkag ntawm riam mus rau hauv cov chav thiab muaj kev cuam tshuam hauv kev ua haujlwm ntawm tus tsav, cov kab hluav taws xob theem ntawm cov cable txuas nrog cov kais dej ntawm cov pab pawg ruaj khov thiab txav tau.
Nyob load so switches
Raws li txoj kev ua kom muaj zog, cov khoom siv no tau muab faib ua peb pawg:
- Thawj - cov keyboards ua haujlwm ntawm tes. Lawv yog luv li BHP (manual load break switch).
- Second - caij nplooj ntoos hlav-tsav autogas. Lawv raug xaiv VNA, thiab lawv cov kev suav nrog yog nqa tawm siv lub zog. Thiab kaw - cocked caij nplooj ntoos hlav tsav.
-
Thiab hom thib peb - nrog lub caij nplooj ntoos hlav tsav thiab fuses. Hom no yog hu ua GNP. Nws peculiarity nyob rau hauv qhov tseeb hais tias nws muaj peev xwm ua hauj lwm raws li kev tiv thaiv luv luv Circuit Court ua tsaug rau cov fusible links muab tso rau ntawm nws thav duab thiab lub kaw lus mechanism thaum lawv hlawv.
Qhov txawv ntawm qhov hloov pauv hloov pauv thiab qhov tsis siv neeg yog dab tsi?
Cov cuab yeej no tsuas yog ua haujlwm ntawm qhov ntsuas (xws li) kev khiav haujlwm tam sim no thiab tsis ua txhaum lub voj voog ntawm qhov hluav taws xob luv luv. Tsis siv neeg version muaj qhov kev sib txuas (kaw) mechanism thaum muaj luv luv Circuit Court. Txhawm rau ua haujlwm ntawm cov hluav taws xob luv luv, qhov hloov pauv-disconnector xav tau cov cuab yeej kev nyab xeeb ntxiv. Piv txwv li, kev sib txuas ua ke, xws li hauv VNP cov khoom siv.
